/**
 *    Copyright 2009-2019 the original author or authors.
 *
 *    Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */
package org.apache.ibatis.transaction;

import org.apache.ibatis.session.TransactionIsolationLevel;

import javax.sql.DataSource;
import java.sql.Connection;
import java.util.Properties;

/**
 * 用于创建Transaction对象的实例
 *
 * @author Clinton Begin
 */
public interface TransactionFactory {

    /**
     * 配置事务工厂的自定义属性
     * @param props 自定义属性
     */
    void setProperties(Properties props);

    /**
     * 通过已有的链接创建一个事务
     * @param conn 现有的数据库链接
     * @return Transaction 事务
     * @since 3.1.0
     */
    Transaction newTransaction(Connection conn);

    /**
     * 从指定的数据源中创建一个事务
     * @param dataSource 数据源
     * @param level 事务级别
     * @param autoCommit 是否自动提交
     * @return Transaction 事务
     * @since 3.1.0
     */
    Transaction newTransaction(DataSource dataSource, TransactionIsolationLevel level, boolean autoCommit);

}
